RSD can spread anywhere in the body it wants to, including internal organs. Not to scare you with that info but it's the truth. RSD spreads via our nervous system which touches every single square inch of us.

There are three "types" of spread, Mirror spread, which is when it spreads from the left side to right or right to left. Continuous(what has happened with you) when it spreads up or down one side of the body. Independent spread is when it goes from left to right foot or left foot to right shoulder.

Hugs,

Karen